Doctors replace Giffords' breathing tube
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Rep. Gabrielle Giffords no longer needs a respirator after doctors replaced her breathing tube with a different one.
Hospital officials say that Giffords underwent surgery Saturday morning to have a tube inserted in her windpipe to protect her airways. She had been breathing on her own since she was shot in the head Jan. 8, but doctors had left the breathing tube in as a precaution. (AP)
